Tuesday 12 July 2016

Getting started with AWS - Creating your first instance

If your subscription qualifies for free tier account, you can launch free tier micro instance.
This blogs uses free tier AMIs to create the instance but the same can be used for purchased instance as well.

Follow the below step by step guide to create your first AWS instance:

1. Choose AMI 

If you are under free tier, you should tick the check box to filter the AMIs eligible under Free Tier Usage.


2. Choose Instance Type 

Only Micro Instances are eligible for the AWS free usage tier.



3. Configure your Instance 
 
Here you will get options to configure Network, Security, Shutdown behavior settings etc.



VPC (Virtual Private Cloud) - VPC is similar to the traditional LAN, except it is on cloud & can be further configured with routing tables, gateway to control visibility of the resource. By default, a default one will be created & ready to use.

Public IP - Make sure to check this box to automatically assign a public IP  to your instance. Also, you need to make a note of the allocated public IP each time you start the instance. Alternatively, you can switch to static public IP address with additional cost.

Shutdown Behavior - Available options are:

  • Stop - Stops the instance. Instance data & configuration is retained & it is similar to physical shutdown of device. You won't be charged for Instance in stopped state. If any EBS volumes are attached to this instance they will still be charged.
  • Reboot - Reboots the instance.
  • Terminate - Terminates the instance, erases instance configuration & will also erase any storage volume associated with the instance.

You should set this behavior to Stop.

Enable termination protection - Protects from any accidental termination.

Monitoring - Check this box to enable detailed monitoring if you need monitoring data for every minute at additional cost. By default basic monitoring will be enabled with refresh cycle of 5 minute window.

Tenancy - By default it will be shared tenancy i.e. the instance will run on shared hardware.

Network Interface:
By default one Ethernet interface(eth0) will be available with the instance. If you have enabled Public IP option, then Primary IP field will also set to Auto-assign & disabled for any change.

Step 4: Add Storage

Here you can configure the storage for your instance. Additional volumes can be added by clicking on Add New Volume.



Step 5: Tag Instance

Tagging helps to define your own metadata to manage the instance.



Step 6 : Configure Security Group

You can create a new security group & can reuse the same with other instance.



Click Review & launch to launch the instance.


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